#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <vector>

using namespace std;

class Solution {
public:
    int search(vector<int>& nums, int target) {
        int left = 0, right = nums.size() - 1;

        while (left <= right)
        {
            int mid = left + (right - left + 1) / 2;
            if (nums[mid] > target)    right = mid - 1;
            else if (nums[mid] < target) left = mid + 1;
            else return mid;
        }

        return -1;
    }
};

int main()
{

	return 0;
}